744689913 has 32 divisors (see below), whose sum is σ = 1150837632. Its totient is φ = 423321600.

The previous prime is 744689893. The next prime is 744689951. The reversal of 744689913 is 319986447.

It is not a de Polignac number, because 744689913 - 2⁶ = 744689849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (744689983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173473 + ... + 177713.

It is an arithmetic number, because the mean of its divisors is an integer number (35963676).

Almost surely, 2^744689913 is an apocalyptic number.

It is an amenable number.

744689913 is a deficient number, since it is larger than the sum of its proper divisors (406147719).

744689913 is a wasteful number, since it uses less digits than its factorization.

744689913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4585.

The product of its digits is 1306368, while the sum is 51.

The square root of 744689913 is about 27289.0071823802. The cubic root of 744689913 is about 906.4109785029.

The spelling of 744689913 in words is "seven hundred forty-four million, six hundred eighty-nine thousand, nine hundred thirteen".